IR laser diodes and IR LEDs open up new fields of application in virtual reality and augmented reality. At the same time, this sets special requirements in terms of development and integration of laser drivers.
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In semiconductor microelectronics production, display fabrication, medical device manufacture and many other industries, there is an increasing trend towards higher precision processing of parts with smaller feature sizes and with reduced effect on surrounding material. Increasingly, ultrafast lasers with picosecond or femtosecond pulse widths are being used to accomplish these tasks.
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Conventional diode lasers with external grating cavity are too sensitive and complex for many applications because of movable components. We are presenting a miniaturized diode laser with an external volume Bragg grating at 780 nm, with high output, narrow linewidth and almost diffraction-limited beam profile. This provides a stable and compact alternative to the distributed feedback laser.
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Flat-top beam profiles of diode lasers used in industrial applications are typically achieved through the use of shaping optics. Optical fibers with a rectangular core geometry offer an alternative. They actively participate in shaping the beam and replace, among other things, the expensive homogenizers.
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The enormous potential of photonic manufacturing methods has not yet been fully exploited since many materials available today are highly inadequate for the processing tasks industry requires. Targeted changes to metals, polymers and their composites can make laser-based processing economical or significantly improve it. When used in laser-based production processes, novel materials can generate final products with a wide range of additional functionalities.
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The average power of modern laser systems for micromachining increases successively. A new type of scanning system efficiently uses this laser power and reaches outstanding micromachining speed with highest precision.
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In this article we present an all-optical method that allows distinguishing breast cancer cell
types for the first time. The method is based on analysis of diffraction patterns obtained by
illuminating the cells with a coherent laser-driven light source in the extreme ultraviolet. It
is expected that this method will allow for fast classification... von Quantumelectronics GroupInstitute of Optics and QuantumElectronics, Abbe Center of Photonics,Friedrich-Schiller-Universitymehr

During the last two decades, ultrashort femtosecond laser systems have grown into
well-established light sources for various in scientific and industrial applications.
These systems offer a unique combination of very high peak powers from Megawatt
to even Petawatt with ultrashort pulse duration in the range of 30 fs (1 fs = 10-15 s).
The applications... von VENTEON Laser Technologies GmbH, Department of Physics, Lund Universitymehr

Wavelength beam combining (WBC), also known as spectral beam combining (SBC), allows for scaling up the power of a laser system in a modular approach, while preserving the beam quality of the combined beam. This paper goes over the basic concepts, and discusses the scaling potential for direct-diode laser systems and the limitations of the technique.... von TeraDiode Inc., Wilmington, Massachusetts, USAmehr